Katy Perry's family are worried about her womanising new boyfriend, John Mayer

Katy Perry's Family and Friends try to warn her that she could be making the same mistake by dating another Love Rat

Katy Perry is showing the world that she is definitely moving on, but her latest match, John Mayer, has got the singer's family a tad worried and let's face it - they should be! John's little black book of ex-girlfriends makes Russell Brand's look like a post-it-note, which is saying a lot. Believe us.

So has Katy Perry's family got a point to be worried? Well an insider told the Daily Star: 'John has a big reputation as a serial womaniser. If people thought her ex, Russell Brand, was bad, John is notoriously a lot worse.'

'Katy's friends are worried this is just a rebound bit of fun but will end with her getting really hurt.'

Hmm even though the California girl clearly has a bit of a 'bad-boy type', we're really hoping she will find a Prince Charming one day, preferably one without the long, rock-star, I-haven't-washed-in-three-days look... But that's never going to happen, is it?

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